Denis mootet



D. MONFET.

LOCK FOR DOUBLE DOORS.

APPLICATION FILED NOV-9.1818.

' Patentad 0m. 21,1919.

plied to double swinging doors,

DENIES MONFET, OF LAKE MEGANTIC, QUEBEC, fiAlirADAl LOCK non DOUBLE noons.

Specification of Letters Patent.

Patented oct. 21, 1919.

Application filed November 9, 1918 Serial No. 261,862.

To all whom it may concern: A

Be it known that I, DENIS MoNrEr, a sub- %ect of the King of England, residing at Jake Megantic, Province of Quebec, Dominion of Canada, have invented new and useful Improvements in Looks for Double Doors, of which the following is a specification.

The invention seeks to provide, as its principal object, a locking device to be ap whereby both may be locked simultaneously by a single lock.

Another object of the invention is to provide a device of this character, which is simple in construction, durable and efi'ective in operation and inexpensive to manufacture.

Still other and further objects appear as the invention is set forth in detail in the following description.

To the exact construction in which it is shown and described, the invention is not to be restricted. The right is reserved to make such changesor alterations as the actual reduction to practicemay demand, in so far as such changes or alterations are comprehended in spirit by the annexed claims.

In the accompanying drawings:

Figure 1 is a perspective View showing the practical app ication of the invention,

Fig. 2 is an enlarged detail sectional view illustrating the manner in which the invention secures a swinging door couple in locked position. a

Referring to the drawings, there is shown for the purpose of illustration a cupboard or closet A having a central partition 1 dividing the interior of the cupboard into two compartments, each of which is de signed to be closed by a hingedly mounted door 2, the free edges of the doors adjoining each other when in closed position at the edge of the partition 1. One of the doors 2 is provided with a lock 3, which by securing both doors in may be of either the mortise 0r rim type,

preferably the former, and Whose locking bolt 4; is operated by a key 5. The other of the doors is provided with a keeper 6 adapted to receive the bolt i of the lock.

There is attached to the partition 1, a plate 7 which is preferably set in flush with the latter, this plate projecting beyond the front end of the partition a distance equal to the thickness of the doors; and having formed in this projecting portion, a slot 8 adapted to receive the locking bolt i.

In the operation of the device, when the two doors are closed, and the bolt 4 operated by the key 5, the bolt l passes through the slot 8 and then into the keeper 6, therelocked position, as is readily apparent in the drawings.

It will be observed that the two doors are thus held in locked position without having first to secure one door by a hook or other means carried in the cupboard and then look the second door to it.

The invention having been described, What I claim as new and useful is:

1. The combination with a pair of doors including a right hand and left hand hung door, of a lock attached to one door an having a bolt, a keeper attached to the other door, and means for engagement by the bolt of the lock whereby both doors are held in locked position.

2. The combination with a bolt lock and its-keeper, of a plate having a slot formed therein for engagement by the bolt of the lock, the plate being designed to stand between the lock and the keeper, whereby the atta-clnnent 'of the plate to a fixed object will permit oppositely hung swinging doors to be locked simultaneously when the lock is attached to one door and the keeper to the other.

In testimony whereof I affix my signature.

DE-NIS MONFET. 

